中文摘要：

在正交频分复用（OFDM）系统中,部分传输序列（PTS）方法是降低峰均功率比（PAPR）最有效的方法之一.与常规的部分传输序列（C-PTS）相比,导频序列的插入可以更好地降低PAPR.采用带有循环移位的导频信号,首先将导频信号和数据信号分别分割成子块,然后将导频子序列分别插入到数据子块中,通过反馈及循环移位产生更多的待选序列,更好的降低PAPR.仿真结果表明所提方法可以有效降低PAPR,且其误码率（BER）性能与C？PTS相当.

英文摘要：

The partial transmit sequence(PTS)method is one of the most effective methods to reduce the peak?to?average power ratio (PAPR) in orthogonal frequency?division multiplexing (OFDM) system. In comparison with the conventional PTS (C?PTS),the insertion of pilot frequency sequence can reduce the PAPR better. The pilot signal with cyclic shift is adopted in this paper. The pilot frequency signal and data signal are divided into the subblocks respectively,and then the pilot frequency subsequences are inserted into the data subblocks respectively to generate more sequences waiting for selection through feedback and cyclic shift and reduce the PAPR better. The simulation results show that the proposed method can reduce the PAPR effec?tively,and the performance of its bit error rate(BER)is as same as that of C?PTS method.